It is not known but i assume around 20-ish.
its on Undead Nightmare
It's seperate to the original Red Dead Redemption. You can tell straight away as John Marston is still alive.
You can't play coop on Red Dead Redemption or Undead Nightmare.
No because Undead Nightmare is essentially a whole different game. You can only play as his son Jack at the end of the regular Red Dead Redemption.
No, if you buy the one for 20 dollars that is undead nightmare but not the original. The only way to get both is buy the Original Red Dead Redemption and then buy the Undead Nightmare add-on
No
Well, you can get Undead Nightmare into the Red Dead Redemption disc if you download it from the PlayStation Store.
You cannot get Red Dead Redemption - Undead Nightmare on the PlayStation Portable.
I would say Undead Nightmare is a DLC because you die in The 1st Red Dead Redemption...
Only if you want to download the game, if you buy the undead nightmare disc the no you don't need the original red dead redemption.
You can download Red Dead Redemption Undead Nightmare at the playstation store on the playstation network. It costs ten dollars.
No you cannot join with the zombies in undead nightmare